David Crosby has cancelled his appearance at Port Chester, NY’s Capitol Theatre, which was set for tomorrow night. The CSNY staple was slated to perform with Warren Haynes as part of the theater’s Weekend with Warren celebration. Haynes is slated to play a solo set with special guests. Railroad Earth’s Tim Carbone, John Skehan, Andrew Altman and Andy Goessling will still appear during the show. Haynes will also perform at the Cap this Friday with his Warren Haynes Band.